Equivalent & Substitute Parts for BK1/ABC-10DX-R

Part Overview

The BK1/ABC-10DX-R is a 10 A ceramic cartridge fuse rated for 250 V AC and 125 V DC operation, manufactured by Eaton - Electronics Division. This fast-blow fuse is designed for use with 3AB, 3AG holder types and measures 0.250" diameter by 1.250" length. The part maintains Active product status and is ROHS3 compliant with CSA and UL approval certifications.

Equivalent and substitute parts are identified when alternative manufacturers or part number variants provide identical electrical and mechanical specifications, enabling direct replacement in applications where the original part number becomes unavailable or when inventory optimization is required.

Key Parameters

Parameter	Value
Current Rating	10 A
Voltage Rating - AC	250 V
Voltage Rating - DC	125 V
Fuse Type	Cartridge, Ceramic
Response Time	Fast Blow
Package / Case	3AB, 3AG, 1/4" x 1-1/4"
Size / Dimension	0.250" Dia x 1.250" L (6.35mm x 31.75mm)
Mounting Type	Requires Holder
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the BK1/ABC-10DX-R is determined by strict equivalence across the following critical parameters:

Electrical Specifications: Current rating of 10 A, AC voltage rating of 250 V, DC voltage rating of 125 V, and fast-blow response time must be identical across all substitute parts.

Mechanical Specifications: Package designation (3AB, 3AG), physical dimensions (0.250" diameter x 1.250" length), and mounting requirement (holder-based) must match exactly.

Compliance Requirements: All substitute parts must maintain ROHS3 compliance status and active product status.

Substitute parts are grouped into two categories: Eaton - Electronics Division variants (ABC series and GBB series) and Littelfuse Inc. variants (314 series). Within each manufacturer group, parts sharing identical electrical and mechanical parameters are considered direct substitutes.

Parameter Comparison

Part Number	Manufacturer	Series	Current Rating (A)	Voltage AC (V)	Voltage DC (V)	Response Time	Package	Size (in / mm)	Breaking Capacity AC	Breaking Capacity DC	Melting I²t	DC Cold Resistance (Ω)	Approval Agencies	Product Status
BK1/ABC-10DX-R	Eaton - Electronics Division	ABC	10	250	125	Fast Blow	3AB, 3AG, 1/4" x 1-1/4"	0.250" x 1.250" / 6.35mm x 31.75mm	200 A	10 kA	208.8	0.011	CSA, UL	Active
ABC-10-R	Eaton - Electronics Division	ABC	10	250	125	Fast Blow	3AB, 3AG, 1/4" x 1-1/4"	0.250" x 1.250" / 6.35mm x 31.75mm	200 A	10 kA	208.8	0.011	CSA, UL	Active
BK/ABC-10-R	Eaton - Electronics Division	ABC	10	250	125	Fast Blow	3AB, 3AG, 1/4" x 1-1/4"	0.250" x 1.250" / 6.35mm x 31.75mm	200 A	10 kA	208.8	0.011	CSA, UL	Active
BK/GBB-10-R	Eaton - Electronics Division	GBB	10	250	125	Fast Blow	3AB, 3AG, 1/4" x 1-1/4"	0.250" x 1.250" / 6.35mm x 31.75mm	10 kA	10 kA	Not specified	0.00934	CSA, UR	Active
0314010.HXP	Littelfuse Inc.	314	10	250	125	Fast Blow	3AB, 3AG, 1/4" x 1-1/4"	0.250" x 1.250" / 6.35mm x 31.75mm	750 A	10 kA	206	0.0105	CE, CSA, K-MARK, PSE, UL	Active
0314010.MXANP	Littelfuse Inc.	314	10	250	125	Fast Blow	3AB, 3AG, 1/4" x 1-1/4"	0.250" x 1.250" / 6.35mm x 31.75mm	750 A	10 kA	206	0.0105	CE, CSA, K-MARK, PSE, UL	Active
0314010.MXP	Littelfuse Inc.	314	10	250	125	Fast Blow	3AB, 3AG, 1/4" x 1-1/4"	0.250" x 1.250" / 6.35mm x 31.75mm	750 A	10 kA	206	0.0105	CE, CSA, K-MARK, PSE, UL	Active
0314010.VXP	Littelfuse Inc.	314	10	250	125	Fast Blow	3AB, 3AG, 1/4" x 1-1/4"	0.250" x 1.250" / 6.35mm x 31.75mm	750 A	10 kA	206	0.0105	CE, CSA, KC, PSE, UL	Active

Engineering Selection Recommendations

All identified substitute parts maintain Active product status and ROHS3 compliance, qualifying them for direct replacement applications.

Eaton - Electronics Division Substitutes: The ABC-10-R and BK/ABC-10-R variants are parametrically identical to the BK1/ABC-10DX-R across all electrical and mechanical specifications, including breaking capacity and melting I²t values. These parts carry identical CSA and UL certifications. The BK/GBB-10-R variant, while from the GBB series, matches all critical electrical and mechanical parameters but carries CSA and UR certifications instead of UL.

Littelfuse Inc. Substitutes: The 0314010.HXP, 0314010.MXANP, 0314010.MXP, and 0314010.VXP variants from the 314 series provide equivalent electrical and mechanical performance with expanded approval certifications including CE, CSA, K-MARK, PSE, and UL. These parts operate across the temperature range of -55°C to 125°C and carry MSL rating of 1 (Unlimited). Breaking capacity specifications for AC operation are higher at 750 A compared to the 200 A rating of the original part.

Selection between Eaton and Littelfuse variants depends on certification requirements specific to the application and geographic deployment.

Frequently Asked Questions (FAQ)

Q: Can ABC-10-R be used as a direct replacement for BK1/ABC-10DX-R?

A: Yes. The ABC-10-R is parametrically equivalent across all critical specifications: 10 A current rating, 250 V AC / 125 V DC voltage ratings, fast-blow response, 3AB/3AG package designation, and identical physical dimensions. Both parts carry CSA and UL certifications and maintain ROHS3 compliance.

Q: What is the difference between Eaton ABC series and Littelfuse 314 series substitutes?

A: Both series meet identical electrical and mechanical requirements for the 10 A, 250 V AC / 125 V DC application. Littelfuse 314 series parts feature higher AC breaking capacity (750 A versus 200 A), expanded temperature operating range (-55°C to 125°C), and broader approval certifications (CE, CSA, K-MARK, PSE, UL). Eaton ABC series maintains the original breaking capacity specification of 200 A AC.

Q: Are all substitute parts compatible with 3AB and 3AG holders?

A: Yes. All substitute parts specified in this reference maintain the 3AB, 3AG package designation and identical physical dimensions of 0.250" diameter by 1.250" length, ensuring mechanical compatibility with existing holder installations.

Q: Does BK/GBB-10-R provide equivalent performance to BK1/ABC-10DX-R?

A: The BK/GBB-10-R matches all electrical and mechanical parameters required for substitution. However, it carries CSA and UR certifications rather than CSA and UL. Certification requirements for the specific application must be evaluated before selection.

Q: What is the significance of the higher breaking capacity in Littelfuse 314 series parts?

A: The 750 A AC breaking capacity in Littelfuse 314 series parts (0314010.HXP, 0314010.MXANP, 0314010.MXP, 0314010.VXP) exceeds the 200 A AC specification of the original BK1/ABC-10DX-R. This higher rating does not affect compatibility but indicates enhanced fault current handling capability within the same 10 A current rating and 250 V AC voltage rating.

Q: Can Littelfuse 0314010.MXP be substituted based on inventory availability?

A: Yes. The 0314010.MXP meets all parametric equivalence requirements and maintains Active product status with ROHS3 compliance. Current inventory of 5,887 pieces is available for this variant.

Q: Are there temperature operating range differences between substitute options?

A: The original BK1/ABC-10DX-R does not specify an operating temperature range. Littelfuse 314 series substitutes (0314010.HXP, 0314010.MXANP, 0314010.MXP, 0314010.VXP) operate across -55°C to 125°C. Eaton ABC and GBB series variants do not specify operating temperature ranges. Application-specific temperature requirements should be evaluated when selecting between options.

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